Enduro · Two stroke

Beta RR 300 2T

Beta's 300 two stroke enduro bike. Oil injection, electric start, a plush chassis, and the bike that a lot of KTM riders move to when they want something different. Sold in Australia from 2013 to 2026, 14 model years.

About the Beta RR 300 2T

The Beta RR 300 2T is the Italian alternative to the KTM 300 EXC, and for a lot of Australian bush riders it is the better bike. It has had oil injection since 2016 so there is no premix, it starts on the button, the chassis is plusher and more forgiving than the KTM, and the engine makes its power in a smooth, tractable way that suits technical riding. Beta went to a new frame and engine in 2020 and again in 2023.

It suits a trail rider in tight, steep or rocky country, a hard enduro rider, or anyone who has ridden a KTM 300 and wants something a little softer and a little different. Against the KTM it gives away a touch of outright power and the dealer network is smaller, but the ride quality is excellent and the price used is usually lower.

What changed by year

2013 to 2015
Carburetted, premix, electric start. The first of the modern Beta two strokes.
2016 to 2019
Oil injection arrives. No premix. Revised suspension and bodywork.
2020 to 2022
New frame, new engine cases, counterbalancer for less vibration, revised suspension. A big step.
2023 onwards
New generation with a new frame and bodywork. The current bike. Still carburetted with oil injection.

Servicing a RR 300 2T

Gearbox oil every 10 to 15 hours (about 800 ml of a light gear oil or JASO MA 10W 40), air filter every ride in dust, and keep the oil injection tank topped up with a good full synthetic two stroke oil. Never let it run dry. Rings around 60 to 80 hours and a piston around 100 to 150 for a trail bike.

Beta is still carburetted, so keep the jetting right for the season and clean the carburettor if the bike sits. Clean the power valve at every top end. Grease the linkage and swingarm after wet rides.

Engine hours between jobs: the schedule the Digital Garage tracks for this bike, based on the manual. Racers and hard riders go sooner, as above. Ride in sand or mud and halve the engine ones.

JobEvery
Air filter clean and re-oil3h
Chain clean, lube and adjust5h
Spoke tension check10h
Fastener torque check10h
Transmission oil change15h
Cables and throttle lube15h
Air boot and intake seal check25h
Spark plug replace25h
Rings only replace30h
Silencer repack30h
Linkage bearings grease30h
Rear brake pads30h
Power valve clean40h
Tyres inspect / replace40h
Tubes and rim locks40h
Clutch plates inspect50h
Chain slider, guide and roller50h
Front brake pads50h
Grips inspect / replace50h
Top end rebuild (piston and rings)60h
Reed valve inspect60h
Fork service (oil and seals)60h
Swingarm bearings grease60h
Steering head bearings grease60h
Wheel bearings inspect60h
Radiator, hoses and clamps60h
Carburettor / throttle body clean80h
Chain and sprockets replace80h
Shock service80h
Wiring and connectors80h
Bottom end inspect / rebuild100h
Water pump seal and impeller100h
Brake discs inspect100h

Parts that fit a RR 300 2T

Everything that fits a RR 300 2T

Buying a used Beta RR 300 2T

Make sure the oil injection has never run dry and that the pump is working (look for a light haze of smoke on a warm engine). Check the jetting is stock or known. Look for a dented pipe, bent radiators and a worn clutch. Check the rego status. Beta parts take a little longer to get in Australia, so a bike with a good dealer nearby is worth more.

Recent sold prices are on the Marketplace page linked below.

Used Beta RR 300 2Ts for sale

None listed right now. Selling one? List it free →

Beta RR 300 2T known issues

Beta RR 300 2T questions

Does the Beta RR 300 need premix?
No, from 2016 onwards it has oil injection. Earlier bikes need premix.
Beta RR 300 or KTM 300 EXC?
The KTM is fuel injected with a bigger dealer network. The Beta is plusher, smoother and usually cheaper used. Both are excellent bush bikes.
Is the Beta RR 300 road registrable?
Yes. It is sold ADR compliant in Australia and can be registered in every state.
How often should I change the gearbox oil in a Beta RR 300?
Every 10 to 15 hours. It takes about 800 ml.

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